True story.
I recently traded a 72 cab for a 72 50, always wanted to try one since YJM searched them out since they have more gain, according to legend...When I opened it up it had all the good stuff replaced by orange drops. Ugh. But, I grabbed some vintage yellow Philips Chicklets and wow what a difference...it sounded closer to a Fender when I got it; after putting in the original parts it gains up super quick up the volumes.
Luckily the chiclets are MUCH cheaper than Mustards. My other 72 is filled with mostly chiclets also.